Algorithm for Calculating the Dissociation Constants of Ampholytes in Nonbuffer Systems

Algorithm for Calculating the Dissociation Constants of Ampholytes in Nonbuffer Systems

An algorithm for calculating the dissociation constants of ampholytes in aqueous solutions is developed on the basis of spectrophotometric data in the UV and visible ranges without pH measurements of a medium and without buffer solutions. The proposed algorithm has been experimentally tested for fiv...

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Veröffentlicht in:Russian Journal of Physical Chemistry A 2018-05, Vol.92 (5), p.922-926
Hauptverfasser: Lysova, S. S., Skripnikova, T. A., Zevatskii, Yu. E.
Format: Artikel
Sprache:eng
Schlagworte:
Algorithms
Aqueous solutions
Buffer solutions
Chemistry
Chemistry and Materials Science
Error analysis
Mathematical analysis
Physical Chemistry
Physical Chemistry of Solutions
Spectrophotometry
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Beschreibung
Zusammenfassung:An algorithm for calculating the dissociation constants of ampholytes in aqueous solutions is developed on the basis of spectrophotometric data in the UV and visible ranges without pH measurements of a medium and without buffer solutions. The proposed algorithm has been experimentally tested for five ampholytes of different strengths. The relative error of measuring dissociation constants is less than 5%.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024418050229